When Chang 4's probe successfully reached the moon's edge, Zhang He, executive director of the probe project, tore his tears. This time the photographer photographed, and the photograph quickly went into the virus.
Zhang, from the Chinese Academy of Space Technology, meant that years of work had ended. "I feel much different when I see the moon now," she told China.org.cn. "Because it is based on tens of thousands of years of crystallization of aviation engineers."
On January 3, Chang & # 39; e 4, which consisted of unloading and rover, touched the pre-selected location on the moon's edge and began to analyze a surface that is significantly different from the edge of the moon. seen from Earth.
Chang & # 39; e 4's mission is unique because it is the first to land on the far side, which can be the key to securing the moon and its past history. It will also be an ideal place to watch low-frequency radio, she said.
The far side, also known as the "Dark Moon Party", is still relatively unknown, and its composition differs from the places on the near side where previous missions are landed.
Soft landing on the far side
Chinese space experts chose Von Karman craters in the South Pole-Aitken basin as a probe landing site. The area available for unloading was only the twentieth of its predecessor, Chang & # 39; e3, surrounded by mountains up to 10 kilometers.
The Southern Pole-Aitken Basin is the largest and oldest crater of the moon. According to previous NASA reports, the pool is believed to have had a tremendous impact on the first years of the moon, which broke through the crust and dug stones from a deeper underground. The spacecraft can explore these cliffs to learn about lunar creation and the Earth-Moon system, said Li Fei, one of the Lander designers.
The difficult geographical features of the far edge of the moon made landing more difficult than previous missions. The unmanned space ship unloading equipment in the US and the Soviet Union was unable to move or avoid obstacles.
As for Chang & # 4; e 4, scientists have developed technologies supported by AI to accurately survey land forms and identify the safest places to unload, said Zhang. The probe is equipped with high-precision and fast-response sensors capable of analyzing its motion and surroundings, Li explained.
In May last year, China sent a relay satellite to a halo orbit around the second Lagrangian point of the Earth-Moon system to establish a link between the Earth and the Moon.
It is the first satellite to operate in this orbit. Its Chinese name, Queqiao, meaning "Magpie Bridge", comes from Chinese folklore for two lovers who once a year reunited when the magic flock forms a bridge across the Milky Way.
Chinese space experts hope that Queqiao will be able to help other countries that plan to send probes to the moon's longest half-life.
Joining hands for exploration
According to Zhang, the international community strongly supports co-operation in moon exploration, which focuses primarily on the development of scientific discoveries and on raising awareness of the universe.
Collaboration can improve the effectiveness of space exploration as it helps individual countries overcome financial and scale constraints by pooling knowledge and resources, said Zhang, pointing out that this cooperation must be based on mutual respect and trust.
The mission of Chang 4 emphasizes this kind of international cooperation. Regardless of the nine scientific loads developed by China, the mission is equipped with four facilities developed by international cooperation, CN Guipsing, the press officer of the CNSA said at a press conference on January 14th.
Li Guoping, who is also Secretary General of the CNSA, said that after the April 2015 charging announcement, the administration received nearly 20 applications from more than 10 countries to accommodate the cargo in the cargo area. "Finally, we decided to wear four, from Germany, the Netherlands, Sweden and Saudi Arabia, to Chang 4, landing, rover, relay satellite and Longjiang 2 microsatellite."
Li Fei said: "Collaboration, we have learned a lot from our European partners who have gained experience in developing a wealth of experience in deep space probes, and the data will be shared by Chinese and foreign scientists."
Zhang said that in the fourth phase of the Chinese Moon Research Program (CLEP), the participation of other countries is welcomed, the main purpose of which is to establish a science and research base near the south pole of the Moon.
"We look forward to jointly developing and carrying out research tasks to take full advantage of the base for more scientific and technological progress," said Zhang.
On the way
Based on the historical landing of Chang & # 39; s 4 on the moon, China will deepen space exploration and continue to work in the unknown.
China's current lunar program includes three stages: orbiting, descent, and return. According to Chinese engineering academician Wu Weiren and CLEP's chief designer, the first two phases have been completed, and the next step is to launch the Chang 5 probe to collect 2 kilograms of samples and bring them back to Earth.
Zhang said Chang's 5 Moon Sample Return Mission will be launched by the end of this year, marking the success of the first three phases of the CLEP.
Asked about China's first exploration mission to Mars, announced by CNSA vice president Wu Yanhua, but Zhang said the mission was to implement a three-stage plan "in orbit, unloading and testing."
Mars orbit is expected to start operating around 2020, and the land that will reach the surface and send the rover to check the red planet, Zhang said.
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